Tidy lives on the cleanest pirate ship to sail the seven seas: The Spotless. No stains, no slime, not even a stinky sock in sight! Then – SPLAT! – a Poo Monster appears onboard!

Captain Clean is horrified and thinks it’s all Tidy’s fault! Now the pirates are slipping, sliding and screaming as they try to get rid of the pongy pest.

But Tidy feels sorry for the monster. Maybe it just needs a friend. Will Tidy help the pirates get rid of it … or risk everything to save the monster, even if it means walking the plank?